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c++ - 我知道在哪里看，也许这是一个无限循环？ (C++, 使用 VS2012)

转载 作者：行者123 更新时间：2023-11-30 02:01:18 25 4
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好吧，我先 self 介绍一下。我是 Ben，来自荷兰的 17 岁“游戏程序员”，他刚刚开始使用 C++ 编程(大约一个月前开始，但现在已经编程一年了)(我正在使用 Microsoft Visual Studio 2012 作为编译器)。现在，我正在“自学”，但我仍在使用一本书，这本书叫做“通过游戏编程开始 C++，第三版”，作者是 Michael Dawson。

我刚刚完成了第二章，最后一个练习是:“编写一个新版本的猜我的号码程序，其中玩家和计算机互换角色。也就是说，玩家选择一个数字，计算机必须猜测这是什么。”

下面是“猜我的号码”程序的代码:

// Guess My Number
// The classic number guessing game

#include <iostream>
#include <cstdlib>
#include <ctime>

using namespace std;

int main()
{
    srand(static_cast<unsigned int>(time(0)));  //seed random number generator

    int secretNumber = rand() % 100 + 1;    // random number between 1 and 100
    int tries = 0;
    int guess;

    cout << "\tWelcome to Guess My Number\n\n";
    do
    {
        cout << "Enter a guess: ";
        cin >> guess;
        ++tries;

        if (guess > secretNumber)
        {
            cout << "Too high!\n\n";
        }
        else if (guess < secretNumber)
        {
            cout << "Too low!\n\n";
        }
        else
        {
            cout << "\nThat's it! You got it in " << tries << " guesses!\n";
        }
    } while (guess != secretNumber);

    return 0;
}

现在，我忙于思考、编程测试，但根本行不通。看来我陷入了这样一个无限循环。但是我找不到问题。

这是代码，欢迎使用其他方法来解决此问题，请记住，我不太了解该语言。 ;)

// Guess My Number 2
// The classic number guessing game with a twist

#include <iostream>
#include <cstdlib>
#include <ctime>

using namespace std;

int main()
{
    srand(static_cast<unsigned int>(time(0)));

    int secretNumberComputer = rand() % 100 + 1;
    int secretNumberPlayer;
    int triesPlayer = 0;
    int triesComputer = 0;
    int guessPlayer;
    int guessComputer;
    int tooHighPlayer;
    int tooLowPlayer;
    int correctPlayer;
    int tooHighComputer;
    int tooLowComputer;
    int correctComputer;
    int selectNumberIncorrect;
    int lowerGuessComputer = 101;
    int higherGuessComputer = 0;


    cout << "Welcome to Guess My Number\n\n";   

    do
    {
        cout << "Enter a guess: ";
        cin >> guessPlayer;
        ++triesPlayer;

        tooHighPlayer = (guessPlayer > secretNumberComputer);
        tooLowPlayer = (guessPlayer < secretNumberComputer);
        correctPlayer = (guessPlayer == secretNumberComputer);

        if (tooHighPlayer)
        {
            cout << "Too high!\n\n";
        }
        else if (tooLowPlayer)
        {
            cout << "Too low!\n\n";
        }
        else if (correctPlayer)
        {
            cout << "\nThat's it! You got it in " << triesPlayer << " guesses!\n\n";
            break;
        }
        else
        {
            cout << "Error, check code!\n\n";
            break;
        }
    } while (!correctPlayer);


    cout << "Now it's time for you to pick a number and then the computer will guess.\nEnter a number between 1 and 100: ";


    do
    {
        cin >> secretNumberPlayer;
        selectNumberIncorrect = (secretNumberPlayer > 100 || secretNumberPlayer < 1);
        if (selectNumberIncorrect)
        {
            cout << "\nHey, that isn't a number between 1 and 100! Please pick a number that is: ";
        }
        else
        {
            break;
        }
    } while (selectNumberIncorrect);

    guessComputer = (rand() < lowerGuessComputer && rand() > higherGuessComputer);
    cout << "\n\nNow the computer is going to try to guess your number:" << endl;
    cout << "Computer, take a guess: " << guessComputer << endl;
    ++triesComputer;

    tooHighComputer = (guessComputer > secretNumberPlayer);
    tooLowComputer = (guessComputer < secretNumberPlayer);
    correctComputer = (guessComputer == secretNumberPlayer);
    lowerGuessComputer = (rand() % 100 + 1 && rand() < guessComputer);
    higherGuessComputer = (rand() % 100 + 1 && rand() > guessComputer);

    if (tooHighComputer)
    {
        cout << "Too High!\n\n";
        guessComputer = lowerGuessComputer;
    }
    else if (tooLowComputer)
    {
        cout << "Too Low!\n\n";
        guessComputer = higherGuessComputer;
    }
    else if (correctComputer)
    {
        cout << "\nThat's it! You got it in " << triesComputer << " guesses!\n\n";
    }
    else
    {
        cout << "Error, check code!\n\n";
    }


    do
    {
        cout << "Computer, take a guess: " << guessComputer << endl;
        ++triesComputer;


        if (tooHighComputer)
        {
            cout << "Too High!\n\n";
            guessComputer = lowerGuessComputer;
        }
        else if (tooLowComputer)
        {
            cout << "Too Low!\n\n";
            guessComputer = higherGuessComputer;
        }
        else if (correctComputer)
        {
            cout << "\nThat's it! You got it in " << triesComputer << " guesses!\n\n";
            break;
        }
        else
        {
            cout << "Error, check code!\n\n";
            break;
        }
    } while (!correctComputer);


    if (triesComputer < triesPlayer)
    {
        cout << "You lost against the computer!\n\n";
    }
    else if (triesComputer > triesPlayer)
    {
        cout << "You won!\n\n";
    }
    else
    {
        cout << "It's a tie!\n\n";
    }

    cout << "Thank you for playing! Goodbye!" << endl;

    return 0;
}

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